Kinetic study of the reaction of OH with CH3I revisited

• DOI: 10.1002/kin.20583
• Publication Date: 2011-08-21T15:45:39Z
• Authors: Shaoliang Zhang; Rafal S. Strekowski; Loïc Bosland; Anne Monod; Cornelius Zetzsch
• Keywords: Flash photolysis; Torr

Abstract A flash photolysis resonance fluorescence technique has been employed to investigate the kinetics and mechanism of reaction OH(X 2 Π) radicals with CH 3 I over temperature pressure ranges 295–390 K 82–303 Torr He, respectively. The experiments involved time‐resolved RF detection OH (A Σ + → X Π transition at λ = 308 nm) following FP H O/CH I/He mixtures. were produced by O in vacuum‐UV wavelengths > 115 nm using a commercial Perkin‐Elmer Xe lamp. Decays presence are observed be exponential, decay rates found linearly dependent on concentration. measured rate coefficients for described Arrhenius expression k OH+CH3I (4.1 ± 2.2) × 10 −12 exp [(−1240 200)K/T] cm molecule −1 s . implications reported kinetic results understanding chemistry both atmospheric nuclear industry interests discussed. © 2011 Wiley Periodicals, Inc. Int J Chem Kinet 43: 547–556,